constitutional
UK: ˌkɒnstɪˈtjuːʃənəl | US: ˌkɑːnstɪˈtuːʃənəl
adj. relating to or in accordance with a constitution (e.g., a constitutional government)
adj. inherent in the physical or mental structure (e.g., a constitutional weakness)
n. a walk taken for one's health (archaic usage)
The word traces back to Latin constituere ("to set up, establish"), combining con- (intensive prefix) and statuere ("to stand, place"). Over time, constitution evolved to mean the foundational laws of a state (literally "how things stand together"). The suffix -al transforms it into an adjective, reflecting adherence to or nature of such principles.
The court ruled the law unconstitutional.
She has a constitutional right to free speech.
His optimism is almost constitutional.
The king took his daily constitutional in the gardens.
Constitutional reforms were debated in parliament.